P0401：用Prewitt算子检测图像的边缘



P0402：用不同σ值的LoG算子检测图像的边缘



P0403：用Canny算子检测图像的边缘



P0404：图像的阈值分割



P0405：用水线阈值法分割图像



P0406：对矩阵进行四叉树分解



P0407：将图像分为文字和非文字的两个类别



P0408：形态学梯度检测二值图像的边缘



P0409：形态学实例——从PCB图像中删除所有电流线，仅保留芯片对象-P0401: Prewitt operator detects edges in the image P0402: with different values ​ ​ of σ LoG operator detects edges in the image P0403: Canny operator detects edges in the image P0404: Image Thresholding P0405: water line image segmentation threshold method P0406: the matrix quadtree decomposition P0407: text and the image is divided into two categories of non-text P0408: binary image morphological gradient edge detection P0409: morphological instance- the image from the PCB to remove all current lines, retaining only the object chip